9. In the ’90s, Americans borrowed the yin-yang, an ancient Chinese symbol of duality, so that young girls could buy friendship necklaces at Claire’s or have funky shoes to wear to the dance.

10. Lisa Frank, who would later become known as the prophet of cuteness, often employed holographic elements in her designs. Elders say it was perhaps a hypnotic tactic, helpful in the brainwashing of young girls.